Scriber
hand tool used in metalworking to mark lines on workpieces, prior to machining
A scriber is a hand tool used in metal work to mark lines on workpieces, prior to machining. The process of using a scriber is called scribing and is just part of the process of marking out. It is used instead of pencils or ink lines, because the latter are hard to see, easily erased, and imprecise due to their wide mark; scribe lines are thin and semi-permanent. On non-coated workpieces marking blue is commonly used to increase the contrast of the mark lines.
They are a rod with a tip made of cast steel that has been hardened and tempered. The point is sharpened to an angle of 30 or 40 degrees. Some scribers have a point at both ends. It is used by dragging the point over the surface of the workpiece to leave a shallow scratch on its surface.
Scriber block
A scriber block is used to lay out lines at a set height from the base, thus its second name surface height gauge or just surface gauge.
The workpiece is held against an angle plate so that it is perpendicular to the surface plate; the scriber block is then adjusted to the required height and used to scribe a line parallel with the table, by sliding the block along the table's surface.
The public source identifies “Scriber” as hand tool used in metalworking to mark lines on workpieces, prior to machining. This brief keeps that definition visible, then builds a research path around Scriber, hand and tool.
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This entry incorporates text from “Scriber” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.